MJ2955 PNP Bipolar BJT Transistor 60V 15A TO-3
The MJ2955 PNP Bipolar Junction Transistor (BJT) is a high-power transistor designed for demanding applications that require high current and voltage handling capability. Encased in a rugged TO-3 metal package, the device provides excellent thermal performance and mechanical durability, making it suitable for power circuits where efficient heat dissipation is essential. The MJ2955 is commonly used as the complementary PNP pair for the popular 2N3055 transistor in amplifier and power supply designs.
Thanks to its high collector current capability and robust construction, the MJ2955 is widely used in linear power supplies, audio amplifiers, motor control circuits, and voltage regulator stages. Its reliable operation and high power dissipation capability make it a preferred choice for engineers designing high-current circuits and industrial electronics.
Features:
- High current power transistor.
- PNP bipolar junction transistor design.
- Excellent thermal stability.
- Durable TO-3 metal package for effective heat dissipation.
- Suitable for high power amplification.
- Reliable operation in switching and linear circuits.
- Compatible complementary pair with 2N3055 transistor.
Specifications:
| Parameter | Value |
|---|---|
| Transistor Type | PNP |
| Collector-Emitter Voltage (VCER) | 60V |
| Collector-Emitter Voltage (VCBO) | 70V |
| Emitter-Base Voltage (VEBO) | 7V |
| Collector Current (IC) | 15A |
| Power Dissipation | 115W |
| Collector-Base Voltage (IE = 0)(VCBO) | 100V |
| Base Current (IB) | 7A |
| Total Dissipation at Tc ≤ 25 o C (Ptot) |
115W |
| DC Current Gain (hFE) | 20–70 |
| Package Type | TO-3 |
| Operating Temperature | -65°C to +200°C |
Pinout:
| Pin / Case | Name | Description |
|---|---|---|
| Pin 1 | Base | Controls transistor operation |
| Pin 2 | Emitter | Current output terminal |
| Case | Collector | Connected to metal case |
Applications:
- Audio power amplifiers.
- Linear voltage regulators.
- Power supply circuits.
- Motor driver circuits.
- High-current switching circuits.
- Industrial electronic equipment.
Package Included:
- 1x MJ2955 PNP Bipolar Transistor- BJT 60V 15A TO-3.


